The Interdynamic MP-9 is a blowback-operated,

fully automatic An automatic firearm is an auto-loading firearm that continuously chambers and fires rounds when the trigger mechanism is actuated. The action of an automatic firearm is capable of harvesting the excess energy released from a previous discharge ...

9 mm 9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and ...

caliber

firearm A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions). The first firearms originated in 10th-century China, when bamboo tubes ...

, classified by BATF as a

submachine gun A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an autom ...

. It is made of inexpensive molded

polymer A polymer (; Greek '' poly-'', "many" + ''-mer'', "part") is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic a ...

and stamped steel parts. Ten-, 20-, 32-, 36- and 50-round magazines are available. The MP-9 came from a design that a Swedish company

Interdynamic AB Intratec was a firearm company based in Miami, Florida. The company's most famous product was the TEC-9. History Intratec began as Interdynamic USA, an offshoot of Swedish firearms manufacturer Interdynamic AB. As a result of the lack of a com ...

Stockholm Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in Scandinavia. Approximately 980,000 people liv ...

had for a cheap submachine gun for military applications. Interdynamic was unable to drum up any interest among governments, and the subgun never entered production in Sweden. Unwilling to give up on the design, Interdynamic set up a U.S. subsidiary intended principally to market a semiautomatic version, named the KG-9 after the two principal partners, Kelgren and Garcia, to civilians. More about Kelgren and Garcia can be found under

Intratec TEC-9 The Intratec TEC-9, TEC-DC9, KG-99 and AB-10 are a line of blowback-operated semi-automatic pistols. They were developed by Intratec, an American subsidiary of the Swedish firearms manufacturer Interdynamic AB. Introduced in 1984, the TEC-9 w ...

. Interdynamic USA was forced by the ATF to redesign the KG-9 due to its ease of being converted to full auto. At the same time as a closed bolt being designed, per the BATF, the lower plastic receiver had to be retooled to place a metal serial number tag in the side as opposed to just stamping the serial number in the plastic magazine well. This version was named the KG-99 and it is this gun that was offered in an open bolt submachine gun configuration designated the MP-9. Placed side by side, the KG-99 and MP-9 upper and lower receivers are identical with the exception that the MP-9 has a bolt hold open slot milled in the upper and the tip of the muzzle has a compensation slot cut into it. Interdynamic produced a very small quantity of registered MP-9 submachine guns due to lack of demand by the general public. The MP-9 was made in two configurations, one with select fire capability and a collapsible stock (Interdynamic MP-9), and one that is fully automatic only with no stock (K-9). Production numbers are believed to be less than 50 total, perhaps as few as 24 in select-fire with the collapsible stock. More information on this type of gun can be found here under

Intratec TEC-DC9 The Intratec TEC-9, TEC-DC9, KG-99 and AB-10 are a line of blowback-operated semi-automatic pistols. They were developed by Intratec, an American subsidiary of the Swedish firearms manufacturer Interdynamic AB. Introduced in 1984, the TEC-9 w ...

Imitation made illegally in Europe

Quantities of an illegally-made 9mm

machine pistol A machine pistol is an autoloading pistol capable of fully automatic fire. The term can also be used to describe a stockless handgun-style submachine gun. The term is a calque of ''Maschinenpistole'', the German word for submachine guns. Machine ...

have been seized in Europe. They are somewhat similar to the Intratec TEC-9, and are marked "Intratec TEC-9".

References

External links

Interdynamic MP-9 manual
9mm Parabellum submachine guns Submachine guns of Sweden {{Submachinegun-stub

Imitation made illegally in Europe

See also

References

External links